The number that started the conversation
Across the first 20-plus teachers actively using Mentzi, 87 percent reported spending less time on lesson preparation after adopting the tool. It is a small cohort and we are careful not to overclaim from it, but the consistency of the signal is itself informative. When nearly nine in ten teachers from different schools, boards, and languages converge on the same outcome, it points to a shared underlying condition rather than a quirk of one classroom. That shared condition is what the rest of this piece is about.
What the 87% really tells us
The headline result is not that a tool saved time; it is that there was so much time waiting to be saved. An 87 percent reduction signal implies these teachers were carrying a large, compressible preparation burden before — hours of work that added little pedagogical value beyond the production itself. In other words, the data is a measurement of how much avoidable drudgery sits inside the Indian teaching day. The number describes the problem as much as the solution.
The common thread across these classrooms
Look closer at the cohort and the commonalities sharpen: large class sizes, multiple boards including Maharashtra State Board and CBSE, instruction across several Indian languages, and chronic time scarcity. These are not edge cases; they are the defining features of mainstream Indian schooling. The teachers who benefited most were precisely those facing multilingual, multi-board, high-volume conditions, which describes a huge share of the country's 9.7 million educators. The 87 percent is, in effect, a small window onto the typical Indian classroom.
Why adoption signals matter for Indian EdTech
Indian teachers are famously and rightly sceptical of EdTech that adds work or talks down to them, so a high satisfaction signal among early adopters is meaningful. It suggests the tool is solving a problem teachers actually feel rather than one a product team imagined. Adoption that sticks in Indian classrooms tends to come from concrete time savings, not novelty — teachers keep what earns its keep on a busy Monday. The early data hints that prep-time reduction is one of those keepers.
What we still need to learn
Honest research means stating the limits: 20-plus teachers is a starting point, not proof, and the next step is larger, more rigorous study across more states and boards. We want to know whether saved time translates into measurable changes in teaching practice and, eventually, student outcomes. The 87 percent figure earns Mentzi the right to ask bigger questions, not the right to declare the work done. What it has already told us is clear enough: the workload is real, it is compressible, and Indian teachers are ready for help that respects them.